B Time Travel & Causality in General Relativity

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General Relativity asserts that causality is fundamental, meaning future events cannot influence the past. The concept of closed timelike curves (CTCs) allows for theoretical time travel, suggesting that if one were to travel back in time, they would not change history but rather fulfill a predetermined role in it. This leads to the idea that memories of future events would not create a paradox, as the timeline is consistent and unchangeable. However, the discussion raises questions about free will and the implications of retaining future memories, as they would not allow for different choices upon returning to the past. Ultimately, the nature of time travel and causality remains a complex and debated topic in theoretical physics.
  • #31
TheQuestionGuy14 said:
would it be a very weird experience if this occurred?

I would expect so, yes. :wink:

TheQuestionGuy14 said:
Would our memories mess up or something?

I've already addressed this in previous posts. At any point on your worldline, your state is what it is, and it can contain information about the state at other points on your worldline. Whether this fits our intuitive notion of "memory" is not a question of physics but of terminology.
 

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